The secret 20% Health and damage buff in Heroic raids from yesterday's hotfixes has been removed.
Earlier today, we revealed that Heroic raid bosses had a secret 20% health and damage buff for players that were over 406 item level equipped. This has now been removed and the curve has been flattened. Once again, these are not hard breakpoints but a sliding scale based on your item level.
Now bosses will gain 0.57% health and 0.86% damage per 1 item level. This is a MUCH lower slope and thus gearing up will always gain you much more power, especially when you consider Tinkers and Threads.
However, it seems like the 369 Cheese still works and will nerf a boss by 20% for almost no loss — jewelry pieces are such low item level and provide so little stats (total of 873 secondary stats and some Stamina), you lose almost nothing for removing them.